I'm going out for the evening and hope to get an answer by the time I
return. Can a fellow sailor explain what semi planing is on a SAILBOAT

and how one knows when it's happening? Thanks.

I won't post the source until Loco makes a fool of himself again...and
if you have this, please shut the hell up! Loco KNOWS BOATS!

"Some light to moderate displacement racer/cruisers are capable of
semi-planing if conditions are right. Heavy air combined with wave
action can conspire to defeat waterline limits. The displacement hull
will clear enough mass to achieve higher speeds, though this is not
planing in the classic sense as too much wetted surface (see figure 19)
remains."


Robert B
35s5...a boat that semi-planed on our second sea trial!
NY